Think I broke Eclipse trying to switch Java versions

[zacf]

I needed to use Java 1.6 for a project. So I switched via:

$ cd /System/Library/Frameworks/JavaVM.framework/Versions
$ sudo mv Current Current.old
$ sudo ln -s 1.6 Current
$ sudo mv CurrentJDK CurrentJDK.old
$ sudo ln -s 1.6 CurrentJDK

and in Eclipse:

JRE Type: Mac OS X VM
JRE Home directory: /System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home

It seemed to work fine. But then I needed to switch back to 1.5. So I did the same terminal commands, and then tried to start Eclipse to switch the preferences back, but got:

JVM Terminated

Exit code=-1
-Xdock:icon=../Resources/Eclipse.icns
-XstartOnFirstThread
-Xms40m
-Xmx512m
-XX:MaxPermSize=256m
-Dosgi.requiredJavaVersion=1.5
-Dorg.eclipse.swt.internal.carbon.smallFonts
-Djava.class.path=/Applications/eclipse/Eclipse.app/Contents/MacOSX/../../../plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v2008081 9.jar
-os macosx
-ws carbon
-arch x86
-showsplash
-launcher /Applications/eclipse/Eclipse.app/Contents/MacOSX/eclipse
-name Eclipse
--launcher.library /Applications/eclipse/Eclipse.app/Contents/MacOSX/../../../plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v2008081 9.jar
-startup /Applications/eclipse/Eclipse.app/Contents/MacOSX/../../../plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v2008081 9.jar
-keyring /Users/zac/.eclipse_keyring
-consoleLog
-showLocation
-vm /System/Library/Frameworks/JavaVM.framework
-vmargs
-Xdock:icon=../Resources/Eclipse.icns
-XstartOnFirstThread
-Xms40m
-Xmx512m
-XX:MaxPermSize=256m
-Dosgi.requiredJavaVersion=1.5
-Dorg.eclipse.swt.internal.carbon.smallFonts
-Djava.class.path=/Applications/eclipse/Eclipse.app/Contents/MacOSX/../../../plugins/org.eclipse.equinox.launcher_1.0.101.R34x_v2008081 9.jar

I tried switching back to 1.6 at the command line, but that didn't work. So I figured I'd just scrap the whole thing and download the newest version of Eclipse (I had been using Europa), but I can't launch it either.

[zoomix]

Weird. Can you run other java programs?

[zacf]

Yes. I ran a couple of my Eclipse projects from the command line and they run.

[bogomips]

-vm /System/Library/Frameworks/JavaVM.framework

This looks a little weird. As I understand the matter the -vm arg is suppose to point directly to the VM run command (e.g. $JAVA_HOME/bin/java). Try running eclipse setting the -vm command explicitly to the correct JRE.

[Fastrack20]

I am experiencing the same problem. The above suggestion did not work. Any thoughts?